D4DS
D4DS
9
Precautions
CAUTION
Do not dismount the operation key from the door intentionally
and insert it to the switch with the door open. Machine may
start operating and injury or death may be caused.
Do not use metal connectors or conduits with this switch. Rigid
connectors and conduits may damage the switch. The broken
conduit hole may cause an electrical shock hazard.
Install the operation key so that it will not hit the operator when the
door is open.
If the D4DS is to be used as a switch in an emergency stop circuit or
in a safety circuit for preventing accidents resulting in injuries or
deaths, use NC contacts with a forced release mechanism and set
the D4DS so that it will operate in positive opening mode. For safety,
install the Switch and the Operation Key using one-way rotational
screws or other similar means to prevent them from easily coming
off. Protect the D4DS with an appropriate cover and post a warning
sign near the D4DS in order to ensure the safety of the door.
To prevent the D4DS from damage due to circuit short-circuiting,
connect a fuse with a breaking current 1.5 to 2 times larger than the
rated current of the D4DS in series to the D4DS.
If the D4DS is used under EN-approved conditions, use a gI or gG
10-A fuse approved by IEC269.
Mounting
Be sure to mount the D4DS with a stopper as shown in the following
illustration. Do not use the casing of the D4DS as a stopper. Be sure
to install the stopper so that the space “a” will be a maximum of
3 mm.
Stopper
Switch
Correct Use
Operating Environment
Do not use the D4DS in the following environments, otherwise the
D4DS may malfunction.
•
Locations subject to significant temperature fluctuations
•
Humid locations where there is a risk of condensation
•
Locations subject to significant vibrations
•
Locations subject to metal chips, oils, and chemicals inside a
protective door
Operation Key
Be sure to use a special Operation Key only. Do not operate the
D4DS with anything other than the special Operation Key, otherwise
the D4DS may break or the safety of the system may not be main-
tained.
Do not impose excessive force on the Operation Key inserted into
the D4DS or drop the D4DS with the Operation Key inserted, other-
wise the Operation Key may deform or break.
Excessive force
Drop
Secure the Operation Key with screws so that the Operation Key
cannot be removed with ease.
Refer to
Dimensions for the mounting dimensions of the Operation
Key and properly mount and the Operation Key correctly so that the
position and angle will be correct.
Make sure that the Operation Key can be inserted properly with a
tolerance of
±
0.5 mm in the upward, downward, left, or right direc-
tion, otherwise the D4DS may soon become damaged.
±
1 min.
±
1 min.
